19004000

素因数分解:

$2^5\times 5^3\times {\mathrm{4751}}^1$

素因数の和:4776

約数の個数: 48

約数和(自身を含む): 46702656

約数和(自身を除く): 27698656

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 125, 160, 200, 250, 400, 500, 800, 1000, 2000, 4000, 4751, 9502, 19004, 23755, 38008, 47510, 76016, 95020, 118775, 152032, 190040, 237550, 380080, 475100, 593875, 760160, 950200, 1187750, 1900400, 2375500, 3800800, 4751000, 9502000, 19004000]

約数ペア:

[(1, 19004000), (2, 9502000), (4, 4751000), (5, 3800800), (8, 2375500), (10, 1900400), (16, 1187750), (20, 950200), (25, 760160), (32, 593875), (40, 475100), (50, 380080), (80, 237550), (100, 190040), (125, 152032), (160, 118775), (200, 95020), (250, 76016), (400, 47510), (500, 38008), (800, 23755), (1000, 19004), (2000, 9502), (4000, 4751)]